package com.education.db.dao;

import java.util.List;

import com.education.db.domain.InfoFile;
import com.education.webservlet.ListCatagorytServlet;
import org.hibernate.LockOptions;
import org.hibernate.Query;
import org.hibernate.criterion.Example;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * A data access object (DAO) providing persistence and search support for
 * InfoFile entities. Transaction control of the save(), update() and delete()
 * operations can directly support Spring container-managed transactions or they
 * can be augmented to handle user-managed Spring transactions. Each of these
 * methods provides additional information for how to configure it for the
 * desired type of transaction control.
 *
 * @see com.education.db.dao.InfoFileDAO
 * @author MyEclipse Persistence Tools
 */
public class InfoFileDAO extends BaseHibernateDAO {
    private static final Logger log = LoggerFactory
            .getLogger(InfoFileDAO.class);
    // property constants
    public static final String FILE_NAME = "fileName";
    public static final String FILE_UPDATER = "fileUpdater";
    public static final String FILE_PATH = "filePath";

    public void save(InfoFile transientInstance) {
        log.debug("saving InfoFile instance");
        try {
            getSession().save(transientInstance);
            log.debug("save successful");
        } catch (RuntimeException re) {
            log.error("save failed", re);
            throw re;
        }
    }

    public void delete(InfoFile persistentInstance) {
        log.debug("deleting InfoFile instance");
        try {
            getSession().delete(persistentInstance);
            log.debug("delete successful");
        } catch (RuntimeException re) {
            log.error("delete failed", re);
            throw re;
        }
    }

    public InfoFile findById(java.lang.Integer id) {
        log.debug("getting InfoFile instance with id: " + id);
        try {
            InfoFile instance = (InfoFile) getSession().get(
                    "com.upload.db.dao.InfoFile", id);
            return instance;
        } catch (RuntimeException re) {
            log.error("get failed", re);
            throw re;
        }
    }

    public List findByExample(InfoFile instance) {
        log.debug("finding InfoFile instance by example");
        try {
            List results = getSession()
                    .createCriteria("com.upload.db.dao.InfoFile")
                    .add(Example.create(instance)).list();
            log.debug("find by example successful, result size: "
                    + results.size());
            return results;
        } catch (RuntimeException re) {
            log.error("find by example failed", re);
            throw re;
        }
    }

    public List findByProperty(String propertyName, Object value) {
        log.debug("finding InfoFile instance with property: " + propertyName
                + ", value: " + value);
        try {
            String queryString = "from InfoFile as model where model."
                    + propertyName + "= ?";
            Query queryObject = getSession().createQuery(queryString);
            queryObject.setParameter(0, value);
            return queryObject.list();
        } catch (RuntimeException re) {
            log.error("find by property name failed", re);
            throw re;
        }
    }

    public List findByKeyWord(String keyWord) {
        log.debug("finding all files included keyWord");
        try {
            String queryString = "from InfoFile as File where File.fileName like '%"+keyWord+"%'";
            System.out.println(queryString);
            Query queryObject = getSession().createQuery(queryString);
            return queryObject.list();
        } catch (RuntimeException re) {
            log.error("find keyWord failed", re);
            throw re;
        }
    }

    public Object findByFileName(Object fileName) {
        return findByUniqueByProperty(FILE_NAME, fileName);
    }

    private Object findByUniqueByProperty(String propertyName, Object value) {
        try {
            String queryString = "from InfoFile as model where model." + propertyName + "=?";
            Query queryObject = getSession().createQuery(queryString);
            queryObject.setParameter(0, value);
            return queryObject.uniqueResult();
        }catch (RuntimeException re)
        {
            log.error("find by property name failed", re);
            throw re;
        }
    }

    public List findByFileUpdater(Object fileUpdater) {
        return findByProperty(FILE_UPDATER, fileUpdater);
    }

    public List findByFilePath(Object filePath) {
        return findByProperty(FILE_PATH, filePath);
    }

    public List findAll() {
        log.debug("finding all InfoFile instances");
        try {
            String queryString = "from InfoFile";
            Query queryObject = getSession().createQuery(queryString);
            return queryObject.list();
        } catch (RuntimeException re) {
            log.error("find all failed", re);
            throw re;
        }
    }

    public InfoFile merge(InfoFile detachedInstance) {
        log.debug("merging InfoFile instance");
        try {
            InfoFile result = (InfoFile) getSession().merge(detachedInstance);
            log.debug("merge successful");
            return result;
        } catch (RuntimeException re) {
            log.error("merge failed", re);
            throw re;
        }
    }

    public void attachDirty(InfoFile instance) {
        log.debug("attaching dirty InfoFile instance");
        try {
            getSession().saveOrUpdate(instance);
            log.debug("attach successful");
        } catch (RuntimeException re) {
            log.error("attach failed", re);
            throw re;
        }
    }

    public void attachClean(InfoFile instance) {
        log.debug("attaching clean InfoFile instance");
        try {
            getSession().buildLockRequest(LockOptions.NONE).lock(instance);
            log.debug("attach successful");
        } catch (RuntimeException re) {
            log.error("attach failed", re);
            throw re;
        }
    }
}